Home / 7,419.21-11,127.73-2,801.13

Finding the Fourth Proportional to 7,419.21, 11,127.73 and 2,801.13

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Solution

The fourth proportional to 7,419.21, 11,127.73 and 2,801.13 is: 4,201.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.21 : 11,127.73 = 2,801.13 : x
  2. Step 2: Convert to fraction form
    7,419.21/11,127.73 = 2,801.13/x
  3. Step 3: Cross multiply
    7,419.21x = 11,127.73 × 2,801.13
  4. Step 4: Simplify right side
    7,419.21x = 31,170,218.33
  5. Step 5: Solve for x
    x = 31,170,218.33/7,419.21
  6. Step 6: Final answer
    x = 4,201.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.